The contact owns a 2013 Kia Sorento. The contact stated that while the vehicle was turned off, it rolled away while she was removing groceries from the passenger side of the vehicle. As a result, the contact ran to the driver's side and jump into the vehicle to stop it. While driving at unknown speeds with the windows up and the air conditioner in the on position, smoke was entering through the vents. The engine warning light was illuminated. The driver was able to pull over. An independent mechanic informed the contact that there was an electrical failure. The contact and child occupant had white residue in their noses, and medical attention was provided. There was no reported fire, air bag deployment, or police report. The vehicle was towed to the local dealer, where it was diagnosed that an engine replacement was needed. The manufacturer was contacted, but no assistance was provided. The contact stated that the failure was related to NHTSA Campaign Number: 23V652000 (Service Brakes, Hydraulic). The failure mileage was approximately 90.000.